Home / 11,213.49-15,474.69-6,433.64

Finding the Fourth Proportional to 11,213.49, 15,474.69 and 6,433.64

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Solution

The fourth proportional to 11,213.49, 15,474.69 and 6,433.64 is: 8,878.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.49 : 15,474.69 = 6,433.64 : x
  2. Step 2: Convert to fraction form
    11,213.49/15,474.69 = 6,433.64/x
  3. Step 3: Cross multiply
    11,213.49x = 15,474.69 × 6,433.64
  4. Step 4: Simplify right side
    11,213.49x = 99,558,507.20
  5. Step 5: Solve for x
    x = 99,558,507.20/11,213.49
  6. Step 6: Final answer
    x = 8,878.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.